X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Ftnl%2Ft_context.c;h=ce37dc04282e12c78e50d94052ffefd96085b71e;hb=205e0e3e38b99c2fb0298755d99a38f111f0b96f;hp=dd590917701693e321300ebb16c80ffaf36a4256;hpb=47ad296a183929c2007c35c60d722b4ac680417d;p=mesa.git

diff --git a/src/mesa/tnl/t_context.c b/src/mesa/tnl/t_context.c
index dd590917701..ce37dc04282 100644
--- a/src/mesa/tnl/t_context.c
+++ b/src/mesa/tnl/t_context.c
@@ -1,8 +1,8 @@
 /*
  * Mesa 3-D graphics library
- * Version:  6.5.2
+ * Version:  7.2
  *
- * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
+ * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -136,11 +136,19 @@ _tnl_InvalidateState( GLcontext *ctx, GLuint new_state )
       RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_COLOR_INDEX );
    }
 
-   if (ctx->Fog.Enabled ||
-       ((ctx->FragmentProgram._Active || ctx->FragmentProgram._Current) &&
-        (ctx->FragmentProgram._Current->FogOption != GL_NONE ||
-         (ctx->FragmentProgram._Current->Base.InputsRead & FRAG_BIT_FOGC))))
+   if (ctx->Fog.Enabled) {
+      /* fixed-function fog */
       RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_FOG );
+   }
+   else if (ctx->FragmentProgram._Active || ctx->FragmentProgram._Current) {
+      struct gl_fragment_program *fp = ctx->FragmentProgram._Current;
+      if (fp) {
+         if (fp->FogOption != GL_NONE || (fp->Base.InputsRead & FRAG_BIT_FOGC)) {
+            /* fragment program needs fog coord */
+            RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_FOG );
+         }
+      }
+   }
 
    if (ctx->Polygon.FrontMode != GL_FILL || 
        ctx->Polygon.BackMode != GL_FILL)